If you're diving into browser automation, web scraping, or setting up a Selenium Grid, you’ve likely encountered the need for the Selenium Server Standalone JAR . This single file is the heart of legacy Selenium RC (Remote Control) and the Selenium Grid hub/node architecture.
curl -LO https://github.com/SeleniumHQ/selenium/releases/download/selenium-4.23.1/selenium-server-4.23.1.jar After downloading, you should verify the JAR file’s integrity using the SHA-256 checksum . 1. Find the checksum file On the same GitHub releases page, you’ll find a file like selenium-server-4.23.1.jar.sha256 . 2. Compute the checksum of your download On Linux/Mac: selenium server standalone jar download
Get-FileHash selenium-server-4.23.1.jar -Algorithm SHA256 Open the .sha256 file from GitHub and ensure the hash matches exactly. Step 5: Running the Selenium Server Once downloaded, you can start the server in standalone mode (Hub + Node combined) with: If you're diving into browser automation, web scraping,
Only download from selenium.dev or github.com/SeleniumHQ . Avoid random mirrors or outdated blog post links. Last updated: April 2026 – covers Selenium 4.x. For the latest version, always check the official downloads page. Compute the checksum of your download On Linux/Mac:
